Portion of a shoe upper



FIG. 1 is a front perspective view of a portion of a shoe upper showing my new design;

FIG. 2 is a rear perspective view thereof; and,

FIG. 3 is a side elevational view thereof.

The broken lines in FIGS. 1-3 that show the four unshaded disclaimed regions within the shaded area, including but not limited to the three unshaded generally triangularly-shaped regions, are for illustrative purposes only and form no part of the claimed design. The broken lines in FIGS. 1-3 that show the remainder of the shoe are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a portion of a shoe upper, as shown and described. 